Mobile detection device for space charge distribution in motor bar insulation
A mobile detection device, space charge technology, applied in the direction of measuring device, using acoustic measurement for testing, measuring electricity, etc., can solve the problem of unrealized movable detection, etc.
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[0013] Such as figure 1 As shown, this embodiment relates to a mobile detection device for space charge distribution in the insulation of motor wire rods, including: moving pulleys 7 arranged on both sides of the motor wire rod to be tested and arranged above the motor wire rod 3 to be tested. The shielding box 9 is provided with an acoustic wave absorbing layer 13, a PVDF piezoelectric sensor 14, a grounding electrode 15, and a pressure applying device positioned above the acoustic wave absorbing layer 13 in sequence, wherein: the PVDF piezoelectric sensor 14 outputs a pressure signal, high The frequency pulse excitation voltage is applied to the wire core of the motor bar 9 through the coupling capacitor 17 and the periodic voltage excitation through the protection resistor 16 .
[0014] The moving pulley 7 is precisely controlled by the rotating screw rod 8 and the pulley is closely attached to the side of the motor bar to be tested, and the device is pushed to realize the ...
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